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William I, Count of Ponthieu — latest news, discussion & facts — IJR
William I, Count of Ponthieu
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William I, Count of Ponthieu
(915-980)
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Mathilde van Vlaanderen, Comtesse de Boulogne
Hildouin III, Count of Ponthieu
Arnulf II, Comte de Boulogne
Roger, Count of Ponthieu